Thank you, Morgan. Revenue for the 3 months ended June 30, 2023, totaled $4.7 million, an increase of 20% as compared to $3.9 million for the same period of 2022. This growth falls within the previously provided guidance range of 15% to 25%. Revenue for the 6 months ended June 2023 totaled $8.5 million, an increase of 19% as compared to $7.1 million for the same period of 2022. Gross margins as a percentage of revenue increased for the 3 months ended June 2023 to 74% from 72% for the same period last year, primarily due to stronger pricing initiatives. For the 3 months ended June 30, 2023, operating income totaled $0.9 million, which is an improvement of $4 million compared to the same period last year, which aligns with our initiative to drive profitable growth and manage spend through 2023.
Operating expenses for the 3 months ended June 30, 2023, decreased to $2.5 million or 54% of revenue, which we believe shows the effectiveness of our cost and expense management initiatives. SANUWAVE continues to execute the financial strategy to improve profitability and manage operating expenses. Net loss for the 3 months June 2023 period was $7.3 million compared to a net income of $1.6 million for the same period in 2022. The increase in our net loss for the 3 months was primarily due to the continued noncash losses on the change in fair value of our derivative liabilities, which totaled $3.8 million of expense for the period.
Adjusted EBITDA for the 3 months ended June 30, 2023, totaled $171,000 as compared to negative $1.9 million during the prior year period. Adjusted EBITDA removes the impact of interest expense, depreciation and amortization, the change in fair value of derivative liabilities, which causes our net loss to be very volatile and other noncash onetime charges, including a onetime release of $1.25 million for a reversal of accrued expenses. Please refer to Slide 5 of the presentation, which is on our website for our reconciliation from net loss to adjusted EBITDA.
Total current assets amount to $6.1 million as of June 30, 2023, versus $6.6 million as of December 31, 2022. Cash totaled $1.2 million. In July 2023, the company closed an additional financing with gross proceeds received totaling approximately $3 million, which is intended to support operations. We thank you for your continued support of SANUWAVE, and I'm now transferring back to Morgan. Morgan?